/* ============================================================
 * 快捷键知识库 — 样式 / Hotkey Knowledge Base — styles
 * 布局参考 LobeHub Docs：固定顶栏 + 左侧导航 + 内容 + 右侧目录
 * ============================================================ */

[hidden] { display: none !important; }

:root {
  color-scheme: light;

  --bg: #f8f8f8;
  --bg-elev: #ffffff;
  --bg-subtle: #f4f4f5;
  --bg-hover: #f0f0f1;

  --text: #080808;
  --text-2: #666666;
  --text-3: #999999;

  --border: #e6e6e6;
  --border-2: #dcdcdc;

  --accent: #0072f5;
  --accent-hover: #005bd1;
  --accent-soft: rgba(0, 114, 245, .08);

  --code-bg: #f4f4f5;
  --code-border: #e2e2e4;
  --code-text: #383a42;

  --shadow-sm: 0 1px 2px rgba(0, 0, 0, .04);
  --shadow-md: 0 4px 16px rgba(0, 0, 0, .06);
  --shadow-pop: 0 8px 28px rgba(0, 0, 0, .12);

  --header-h: 56px;
  --sidebar-w: clamp(200px, 17vw, 240px);
  --toc-w: clamp(180px, 17vw, 240px);
  --gutter: 24px;
  --gap: 36px;
  --max-w: 1440px;

  --radius: 10px;
  --radius-sm: 6px;

  --font-sans: "HarmonyOS Sans", -apple-system, BlinkMacSystemFont, "Segoe UI",
    Roboto, "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei UI", "Microsoft YaHei",
    "Noto Sans SC", ui-sans-serif, system-ui, sans-serif;
  --font-mono: "SF Mono", "Cascadia Mono", "JetBrains Mono", Consolas,
    "Segoe UI Mono", ui-monospace, monospace;
}

/* Dark theme — explicit override (theme toggle) */
:root[data-theme="dark"] {
  color-scheme: dark;

  --bg: #0d0d0d;
  --bg-elev: #161618;
  --bg-subtle: #1c1c1f;
  --bg-hover: #232326;

  --text: #f8f8f8;
  --text-2: #a1a1a6;
  --text-3: #6e6e73;

  --border: #26262a;
  --border-2: #34343a;

  --accent: #3b8eff;
  --accent-hover: #5ba0ff;
  --accent-soft: rgba(59, 142, 255, .14);

  --code-bg: #1c1c1f;
  --code-border: #2e2e33;
  --code-text: #e4e4e7;

  --shadow-sm: 0 1px 2px rgba(0, 0, 0, .5);
  --shadow-md: 0 4px 16px rgba(0, 0, 0, .5);
  --shadow-pop: 0 8px 28px rgba(0, 0, 0, .6);
}

/* Dark theme — follow the system unless the user picked light explicitly */
@media (prefers-color-scheme: dark) {
  :root:not([data-theme="light"]) {
    color-scheme: dark;

    --bg: #0d0d0d;
    --bg-elev: #161618;
    --bg-subtle: #1c1c1f;
    --bg-hover: #232326;

    --text: #f8f8f8;
    --text-2: #a1a1a6;
    --text-3: #6e6e73;

    --border: #26262a;
    --border-2: #34343a;

    --accent: #3b8eff;
    --accent-hover: #5ba0ff;
    --accent-soft: rgba(59, 142, 255, .14);

    --code-bg: #1c1c1f;
    --code-border: #2e2e33;
    --code-text: #e4e4e7;

    --shadow-sm: 0 1px 2px rgba(0, 0, 0, .5);
    --shadow-md: 0 4px 16px rgba(0, 0, 0, .5);
    --shadow-pop: 0 8px 28px rgba(0, 0, 0, .6);
  }
}

* { box-sizing: border-box; }

html { scroll-behavior: smooth; }

body {
  margin: 0;
  padding-top: var(--header-h);
  font-family: var(--font-sans);
  font-size: 16px;
  line-height: 1.75;
  color: var(--text);
  background: var(--bg);
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
}

a { color: inherit; text-decoration: none; }

.skip-link {
  position: absolute;
  left: -9999px;
  top: 8px;
  z-index: 100;
  padding: 8px 14px;
  background: var(--accent);
  color: #fff;
  border-radius: 8px;
}
.skip-link:focus { left: 12px; }

/* ---------------- Top bar ---------------- */

.topbar {
  position: fixed;
  inset: 0 0 auto 0;
  height: var(--header-h);
  z-index: 50;
  background: color-mix(in srgb, var(--bg) 82%, transparent);
  backdrop-filter: saturate(180%) blur(12px);
  -webkit-backdrop-filter: saturate(180%) blur(12px);
  border-bottom: 1px solid var(--border);
}

.topbar-inner {
  max-width: var(--max-w);
  height: 100%;
  margin: 0 auto;
  padding: 0 var(--gutter);
  display: flex;
  align-items: center;
  gap: 14px;
}

.icon-btn {
  flex: none;
  width: 34px;
  height: 34px;
  display: grid;
  place-items: center;
  color: var(--text-2);
  background: transparent;
  border: 1px solid transparent;
  border-radius: var(--radius-sm);
  cursor: pointer;
  transition: background .15s, color .15s;
}
.icon-btn:hover { background: var(--bg-hover); color: var(--text); }
.icon-btn svg { width: 18px; height: 18px; }

/* Detector button with inline shortcut hint */
.detector-btn {
  flex: none;
  display: flex;
  align-items: center;
  gap: 7px;
  height: 34px;
  padding: 0 9px 0 8px;
  color: var(--text-2);
  background: transparent;
  border: 1px solid transparent;
  border-radius: var(--radius-sm);
  cursor: pointer;
  transition: background .15s, color .15s;
}
.detector-btn:hover { background: var(--bg-hover); color: var(--text); }
.detector-btn > svg { width: 18px; height: 18px; flex: none; }
.detector-kbd {
  display: inline-flex;
  align-items: center;
  gap: 2px;
}
.detector-kbd kbd {
  min-width: 0;
  padding: 1px 5px;
  font-size: 11px;
  line-height: 1.4;
  border-bottom-width: 1px;
}
.detector-kbd .plus { color: var(--text-3); font-size: 10px; }

/* Theme toggle */
.theme-btn { display: grid; place-items: center; }
.theme-btn .theme-sun { display: none; }
.theme-btn .theme-moon { display: block; }
:root[data-theme="dark"] .theme-btn .theme-sun { display: block; }
:root[data-theme="dark"] .theme-btn .theme-moon { display: none; }
@media (prefers-color-scheme: dark) {
  :root:not([data-theme="light"]) .theme-btn .theme-sun { display: block; }
  :root:not([data-theme="light"]) .theme-btn .theme-moon { display: none; }
}

.menu-btn { display: none; }

.brand {
  display: flex;
  align-items: center;
  gap: 10px;
  min-width: 0;
}

.brand-mark {
  width: 30px;
  height: 30px;
  flex: none;
  display: grid;
  place-items: center;
  border-radius: 8px;
  background: linear-gradient(140deg, #0072f5, #5b8cff);
  box-shadow: var(--shadow-sm);
}
.brand-mark kbd {
  background: transparent;
  border: none;
  box-shadow: none;
  color: #fff;
  font-size: 15px;
  padding: 0;
  min-width: 0;
}

.brand-title {
  font-size: 16px;
  font-weight: 600;
  letter-spacing: -.01em;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}

.topbar-right {
  margin-left: auto;
  display: flex;
  align-items: center;
  gap: 10px;
}

.search-wrap {
  position: relative;
  display: flex;
  align-items: center;
}
.search-icon {
  position: absolute;
  left: 11px;
  width: 16px;
  height: 16px;
  color: var(--text-3);
  pointer-events: none;
}
#search {
  width: 240px;
  max-width: 46vw;
  padding: 8px 30px 8px 34px;
  font-family: inherit;
  font-size: 14px;
  color: var(--text);
  background: var(--bg-elev);
  border: 1px solid var(--border);
  border-radius: 9px;
  outline: none;
  transition: border-color .15s, box-shadow .15s;
}
#search::placeholder { color: var(--text-3); }
#search:focus {
  border-color: var(--accent);
  box-shadow: 0 0 0 3px var(--accent-soft);
}
.search-clear {
  position: absolute;
  right: 7px;
  width: 20px;
  height: 20px;
  border: none;
  border-radius: 50%;
  background: var(--bg-hover);
  color: var(--text-2);
  font-size: 14px;
  line-height: 1;
  cursor: pointer;
  display: grid;
  place-items: center;
}
.search-clear:hover { background: var(--border-2); }

.search-kbd {
  position: absolute;
  right: 9px;
  display: inline-flex;
  align-items: center;
  gap: 2px;
  pointer-events: none;
}
.search-kbd kbd {
  min-width: 0;
  padding: 1px 5px;
  font-size: 11px;
  line-height: 1.4;
  border-bottom-width: 1px;
}
.search-kbd .plus { color: var(--text-3); font-size: 10px; }
.search-wrap:focus-within .search-kbd,
.search-wrap.has-value .search-kbd { display: none; }
.search-wrap:not(:focus-within):not(.has-value) #search { padding-right: 80px; }

.search-toggle { display: none; }
.search-close {
  display: none;
  flex: none;
  width: 30px;
  height: 30px;
  padding: 0;
  border: none;
  background: transparent;
  color: var(--text-2);
  border-radius: var(--radius-sm);
  cursor: pointer;
  place-items: center;
}
.search-close svg { width: 20px; height: 20px; }
.search-close:hover { background: var(--bg-hover); color: var(--text); }

.lang-switch {
  display: flex;
  padding: 3px;
  background: var(--bg-subtle);
  border: 1px solid var(--border);
  border-radius: 9px;
}
.lang-btn {
  padding: 5px 11px;
  font-family: inherit;
  font-size: 13px;
  font-weight: 600;
  color: var(--text-2);
  background: transparent;
  border: none;
  border-radius: 6px;
  cursor: pointer;
  transition: background .15s, color .15s;
}
.lang-btn.active {
  background: var(--bg-elev);
  color: var(--text);
  box-shadow: var(--shadow-sm);
}

/* ---------------- Layout ---------------- */

.layout {
  max-width: var(--max-w);
  margin: 0 auto;
  padding: 0 var(--gutter);
  display: grid;
  grid-template-columns: var(--sidebar-w) minmax(0, 1fr) var(--toc-w);
  column-gap: var(--gap);
  align-items: start;
}

.sidebar {
  position: sticky;
  top: var(--header-h);
  height: calc(100vh - var(--header-h));
  overflow-y: auto;
  padding: 24px 0 48px;
}

.doc {
  min-width: 0;
  padding: 36px 0 96px;
  outline: none;
}

.toc {
  position: sticky;
  top: var(--header-h);
  height: calc(100vh - var(--header-h));
  overflow-y: auto;
  padding: 40px 0 48px;
}

.scrim { display: none; }

/* scrollbars: hidden on the first screen (before the sticky columns pin,
   they overhang the viewport bottom), shown once pinned */
.sidebar,
.toc { scrollbar-width: none; }
.sidebar::-webkit-scrollbar,
.toc::-webkit-scrollbar { width: 0; height: 0; }
html.is-scrolled .sidebar,
html.is-scrolled .toc { scrollbar-width: thin; }
html.is-scrolled .sidebar::-webkit-scrollbar,
html.is-scrolled .toc::-webkit-scrollbar { width: 6px; }
html.is-scrolled .sidebar::-webkit-scrollbar-thumb,
html.is-scrolled .toc::-webkit-scrollbar-thumb { background: var(--border-2); border-radius: 3px; }
html.is-scrolled .sidebar::-webkit-scrollbar-track,
html.is-scrolled .toc::-webkit-scrollbar-track { background: transparent; }

/* ---------------- Sidebar nav ---------------- */

.side-nav { display: flex; flex-direction: column; gap: 2px; }

.side-search-hint { display: none; }

.side-group { margin-bottom: 18px; }

.side-group-label {
  display: flex;
  align-items: center;
  gap: 8px;
  width: 100%;
  padding: 4px 10px;
  background: none;
  border: 0;
  border-radius: var(--radius-sm);
  font-family: inherit;
  font-size: 12px;
  font-weight: 700;
  letter-spacing: .04em;
  text-transform: uppercase;
  text-align: left;
  color: var(--text-3);
  cursor: pointer;
  transition: background .13s, color .13s;
}
.side-group-label:hover { background: var(--bg-hover); color: var(--text); }

.side-group-label .l-name { flex: 1; overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }

.side-group-label .g-count {
  margin-left: auto;
  font-weight: 600;
  font-variant-numeric: tabular-nums;
  letter-spacing: 0;
}

.chev {
  flex: none;
  width: 0;
  height: 0;
  border-left: 4px solid transparent;
  border-right: 4px solid transparent;
  border-top: 5px solid currentColor;
  transition: transform .15s ease;
}
.side-group-label[aria-expanded="false"] .chev,
.side-app-toggle[aria-expanded="false"] .chev { transform: rotate(-90deg); }

.side-group.is-collapsed .side-group-body { display: none; }

.side-app-head { display: flex; align-items: center; gap: 2px; }
.side-app-head .side-link { flex: 1; min-width: 0; }

.side-app-toggle--empty { visibility: hidden; pointer-events: none; }

.side-app-toggle {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 24px;
  height: 24px;
  flex: none;
  background: none;
  border: 0;
  border-radius: var(--radius-sm);
  color: var(--text-3);
  cursor: pointer;
  transition: background .13s, color .13s;
}
.side-app-toggle:hover { background: var(--bg-hover); color: var(--text); }

.side-app.is-collapsed .side-sub { display: none; }

.side-link {
  display: flex;
  align-items: center;
  gap: 8px;
  padding: 6px 10px;
  font-size: 14px;
  font-weight: 500;
  color: var(--text-2);
  border-radius: var(--radius-sm);
  cursor: pointer;
  transition: background .13s, color .13s;
}
.side-link:hover { background: var(--bg-hover); color: var(--text); }

.side-link .l-name { flex: 1; overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }

.side-link .l-count {
  font-size: 12px;
  color: var(--text-3);
  font-variant-numeric: tabular-nums;
}

.side-link.active {
  background: var(--accent-soft);
  color: var(--accent);
  font-weight: 600;
}
.side-link.active .l-count { color: var(--accent); }

.side-link .dot {
  width: 5px;
  height: 5px;
  border-radius: 50%;
  background: currentColor;
  opacity: 0;
  flex: none;
}
.side-link.active .dot { opacity: 1; }

.side-link .vendor-mini {
  font-size: 11px;
  color: var(--text-3);
  font-weight: 400;
}

.side-sub {
  display: flex;
  flex-direction: column;
  gap: 1px;
  margin: 0 0 4px;
  padding-left: 46px;
}

.side-sublink {
  display: flex;
  align-items: center;
  gap: 8px;
  padding: 4px 8px 4px 12px;
  font-size: 12.5px;
  color: var(--text-3);
  border-left: 2px solid var(--border);
  border-radius: 0 var(--radius-sm) var(--radius-sm) 0;
  cursor: pointer;
  transition: background .13s, color .13s, border-color .13s;
}
.side-sublink:hover { background: var(--bg-hover); color: var(--text); }
.side-sublink .l-name { flex: 1; overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }
.side-sublink .l-count {
  font-size: 11px;
  font-variant-numeric: tabular-nums;
  opacity: .85;
}
.side-sublink.active {
  color: var(--accent);
  border-left-color: var(--accent);
  background: var(--accent-soft);
  font-weight: 600;
}
.side-sublink.active .l-count { color: var(--accent); opacity: 1; }

/* ---------------- Doc content ---------------- */

.doc-hero {
  padding-bottom: 20px;
  margin-bottom: 20px;
  border-bottom: 1px solid var(--border);
}
.doc-hero h1 {
  margin: 0 0 8px;
  font-size: 34px;
  line-height: 1.25;
  font-weight: 700;
  letter-spacing: -.02em;
}
.doc-hero p {
  margin: 0;
  font-size: 16px;
  color: var(--text-2);
  max-width: 65ch;
}
.doc-hero .hero-stats {
  display: flex;
  flex-wrap: wrap;
  gap: 8px 20px;
  margin-top: 16px;
  font-size: 13px;
  color: var(--text-3);
}
.doc-hero .hero-stats b { color: var(--text); font-weight: 650; }

.cat {
  scroll-margin-top: calc(var(--header-h) + 24px);
  margin-top: 56px;
}
.cat:first-of-type { margin-top: 40px; }

.cat-title {
  font-size: 26px;
  font-weight: 700;
  letter-spacing: -.015em;
  margin: 0 0 6px;
}
.cat-desc {
  margin: 0 0 8px;
  font-size: 15px;
  color: var(--text-2);
  max-width: 70ch;
  word-break: keep-all;
  overflow-wrap: break-word;
}

.app {
  scroll-margin-top: calc(var(--header-h) + 24px);
  margin-top: 36px;
  padding-top: 28px;
  border-top: 1px solid var(--border);
}

.app-head {
  display: flex;
  align-items: center;
  flex-wrap: wrap;
  gap: 10px;
  margin-bottom: 4px;
}
.app-title {
  margin: 0;
  font-size: 20px;
  font-weight: 650;
  letter-spacing: -.01em;
}
.app-title a { color: inherit; }
.app-title a:hover { color: var(--accent); }

.vendor-tag {
  font-size: 11.5px;
  font-weight: 600;
  color: var(--text-2);
  background: var(--bg-subtle);
  border: 1px solid var(--border);
  padding: 2px 9px;
  border-radius: 999px;
}
.app-count {
  margin-left: auto;
  font-size: 12.5px;
  color: var(--text-3);
  font-variant-numeric: tabular-nums;
  white-space: nowrap;
}

.app-note {
  margin: 6px 0 4px;
  font-size: 14px;
  color: var(--text-2);
  padding: 10px 14px;
  background: var(--bg-subtle);
  border-left: 3px solid var(--border-2);
  border-radius: 0 8px 8px 0;
  word-break: keep-all;
  overflow-wrap: break-word;
}

.grp-title {
  scroll-margin-top: calc(var(--header-h) + 24px);
  margin: 22px 0 6px;
  font-size: 12px;
  font-weight: 700;
  letter-spacing: .06em;
  text-transform: uppercase;
  color: var(--text-3);
}

/* ---------------- Shortcut list ---------------- */

.kb-list {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(300px, 1fr));
  column-gap: 40px;
  margin-top: 4px;
}

.kb-row {
  display: grid;
  grid-template-columns: auto minmax(0, 1fr) auto;
  align-items: center;
  gap: 14px;
  padding: 8px 10px;
  border-bottom: 1px solid var(--border);
  border-radius: 6px;
  transition: background .12s;
}
.kb-row:hover { background: var(--bg-subtle); }

.kb-tools {
  display: inline-flex;
  align-items: center;
  gap: 2px;
  opacity: 0;
  transition: opacity .12s;
}
.kb-row:hover .kb-tools,
.kb-row:focus-within .kb-tools { opacity: 1; }
.kb-copy,
.kb-fav {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 26px;
  height: 26px;
  padding: 0;
  border: none;
  border-radius: 6px;
  background: transparent;
  color: var(--text-3);
  cursor: pointer;
  transition: background .12s, color .12s;
}
.kb-copy svg,
.kb-fav svg { width: 15px; height: 15px; }
.kb-copy:hover,
.kb-fav:hover { background: var(--bg-hover); color: var(--text); }
.kb-copy.is-done { color: #17914b; }
.kb-fav.is-on { color: #e0a336; opacity: 1; }
.kb-fav.is-on svg path { fill: currentColor; }
.kb-row:has(.kb-fav.is-on) .kb-tools { opacity: 1; }

.kb-src {
  font-size: 11px;
  color: var(--text-3);
  border: 1px solid var(--border);
  border-radius: 999px;
  padding: 1px 7px;
  white-space: nowrap;
  max-width: 160px;
  overflow: hidden;
  text-overflow: ellipsis;
}

.kb-keys {
  white-space: nowrap;
}
.kb-action {
  font-size: 15px;
  color: var(--text);
  min-width: 0;
}

/* ---------------- kbd chips (docs-code style) ---------------- */

.kbd-set {
  display: inline-flex;
  align-items: center;
  gap: 4px;
  flex-wrap: nowrap;
}
.kbd-set .plus {
  color: var(--text-3);
  font-size: 12px;
  padding: 0 1px;
}
kbd {
  display: inline-block;
  min-width: 24px;
  padding: 3px 8px;
  font-family: var(--font-mono);
  font-size: 12.5px;
  font-weight: 600;
  line-height: 1.45;
  text-align: center;
  color: var(--code-text);
  background: var(--code-bg);
  border: 1px solid var(--code-border);
  border-bottom-width: 2px;
  border-radius: var(--radius-sm);
}

mark {
  background: rgba(0, 114, 245, .16);
  color: inherit;
  border-radius: 3px;
  padding: 0 2px;
}
.popular { max-width: var(--max-w); margin: 10px auto 0; padding: 0 var(--gutter); }
.popular-inner { background: var(--bg-elev); border: 1px solid var(--border); border-radius: 12px; padding: 12px 14px; }
.popular-head { display: flex; align-items: center; justify-content: space-between; gap: 10px; margin: 0 0 10px; }
.popular-title { margin: 0; font-size: 14px; color: var(--text-2); }
.popular-list { display: flex; flex-wrap: wrap; gap: 8px; }
.fav-chip {
  display: inline-flex;
  align-items: center;
  gap: 5px;
  padding: 4px 10px;
  border: 1px solid var(--border);
  border-radius: 999px;
  background: var(--bg-subtle);
  color: var(--text-2);
  font-size: 12.5px;
  font-variant-numeric: tabular-nums;
  cursor: pointer;
  transition: background .12s, color .12s, border-color .12s;
}
.fav-chip:hover { background: var(--bg-hover); color: var(--text); }
.fav-chip .fav-star { color: var(--text-3); }
.fav-chip.is-on { border-color: #e0a336; color: var(--text); }
.fav-chip.is-on .fav-star { color: #e0a336; }

.popular-tools { display: inline-flex; align-items: center; gap: 6px; }
.icon-mini {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 28px;
  height: 28px;
  padding: 0;
  border: 1px solid var(--border);
  border-radius: 999px;
  background: var(--bg-subtle);
  color: var(--text-3);
  cursor: pointer;
  transition: background .12s, color .12s, border-color .12s;
}
.icon-mini svg { width: 15px; height: 15px; }
.icon-mini:hover { background: var(--bg-hover); color: var(--text); }
.popular-edit.is-on {
  border-color: var(--accent);
  color: var(--accent);
  background: var(--accent-soft);
}

.popular-remove {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 15px;
  height: 15px;
  margin: 0 -2px 0 2px;
  padding: 0;
  border: none;
  border-radius: 50%;
  background: color-mix(in srgb, var(--text-3) 25%, transparent);
  color: var(--bg-elev);
  font-size: 12px;
  line-height: 1;
  cursor: pointer;
}
.popular-remove:hover { background: #d64545; color: #fff; }

.popular-editbar {
  display: flex;
  align-items: center;
  gap: 8px;
  margin-top: 10px;
  padding-top: 10px;
  border-top: 1px dashed var(--border);
}
.popular-editbar[hidden] { display: none; }
.popular-add {
  flex: 1 1 auto;
  max-width: 260px;
  padding: 5px 8px;
  font-family: inherit;
  font-size: 12.5px;
  color: var(--text);
  background: var(--bg-subtle);
  border: 1px solid var(--border);
  border-radius: 6px;
  cursor: pointer;
}
.popular-reset {
  flex: none;
  padding: 5px 10px;
  font-family: inherit;
  font-size: 12.5px;
  color: var(--text-2);
  background: transparent;
  border: 1px solid var(--border);
  border-radius: 6px;
  cursor: pointer;
  transition: background .12s, color .12s;
}
.popular-reset:hover { background: var(--bg-hover); color: var(--text); }
.popular-chip { display: inline-flex; align-items: center; gap: 6px; padding: 6px 10px; border: 1px solid var(--border); border-radius: 999px; background: var(--bg-subtle); color: var(--text-2); text-decoration: none; font-size: 13px; }
.popular-chip:hover { background: var(--bg-hover); color: var(--text); }

@media (prefers-color-scheme: dark) {
  mark { background: rgba(59, 142, 255, .28); }
}

/* ---------------- TOC ---------------- */

.toc-inner {
  position: sticky;
  top: 0;
}

.toc-title {
  font-size: 12px;
  font-weight: 700;
  letter-spacing: .04em;
  text-transform: uppercase;
  color: var(--text-3);
  margin-bottom: 10px;
  padding-left: 12px;
}

.toc-nav { display: flex; flex-direction: column; }

.toc-group { margin-bottom: 10px; }

.toc-cat {
  padding: 4px 12px;
  font-size: 13px;
  font-weight: 650;
  color: var(--text-2);
}

.toc-link {
  display: block;
  padding: 4px 12px;
  font-size: 13px;
  color: var(--text-3);
  border-left: 2px solid transparent;
  cursor: pointer;
  transition: color .13s, border-color .13s;
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}
.toc-link:hover { color: var(--text); }
.toc-link.active {
  color: var(--accent);
  border-left-color: var(--accent);
  font-weight: 600;
}

.toc-sub { display: flex; flex-direction: column; margin-bottom: 4px; }

.toc-sublink {
  display: block;
  padding: 3px 12px 3px 26px;
  font-size: 12px;
  color: var(--text-3);
  border-left: 2px solid transparent;
  cursor: pointer;
  transition: color .13s, border-color .13s;
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}
.toc-sublink:hover { color: var(--text); }
.toc-sublink.active {
  color: var(--accent);
  border-left-color: var(--accent);
  font-weight: 600;
}

/* ---------------- Results head ---------------- */

.results-head {
  display: flex;
  align-items: baseline;
  gap: 10px;
  margin-bottom: 8px;
  padding-bottom: 16px;
  border-bottom: 1px solid var(--border);
}
.results-head h2 {
  margin: 0;
  font-size: 22px;
  font-weight: 700;
}
.results-count {
  font-size: 13px;
  color: var(--text-3);
}

/* ---------------- Empty ---------------- */

.empty {
  max-width: var(--max-w);
  margin: 0 auto;
  padding: 100px 24px 140px;
  text-align: center;
  color: var(--text-2);
}
.empty svg {
  width: 40px;
  height: 40px;
  color: var(--text-3);
  margin-bottom: 14px;
}
.empty p { font-size: 16px; margin: 0 0 18px; }

.btn {
  padding: 9px 20px;
  font-family: inherit;
  font-size: 14px;
  font-weight: 600;
  color: #fff;
  background: var(--accent);
  border: none;
  border-radius: 9px;
  cursor: pointer;
  transition: background .15s;
}
.btn:hover { background: var(--accent-hover); }

/* ---------------- Footer ---------------- */

.footer {
  max-width: var(--max-w);
  margin: 0 auto;
  padding: 22px var(--gutter) 48px;
  font-size: 13px;
  color: var(--text-3);
  border-top: 1px solid var(--border);
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 8px;
  text-align: center;
}

.footer-copy { color: var(--text-3); }

.footer-links {
  display: flex;
  flex-wrap: wrap;
  gap: 10px 12px;
}

.footer-links a {
  color: var(--text-2);
  text-decoration: none;
}

.footer-links a:hover {
  color: var(--text);
  text-decoration: underline;
}

/* ---------------- GitHub link ---------------- */

.github-btn svg { width: 19px; height: 19px; }

/* ---------------- Back to top ---------------- */

.to-top {
  position: fixed;
  right: 22px;
  bottom: 22px;
  z-index: 80;
  width: 42px;
  height: 42px;
  display: grid;
  place-items: center;
  color: var(--text-2);
  background: var(--bg-elev);
  border: 1px solid var(--border);
  border-radius: 50%;
  box-shadow: var(--shadow-md);
  cursor: pointer;
  opacity: 0;
  visibility: hidden;
  transform: translateY(8px);
  transition: opacity .18s ease, transform .18s ease, visibility .18s,
    background .15s, color .15s, border-color .15s;
}
.to-top svg { width: 20px; height: 20px; }
.to-top:hover {
  background: var(--bg-hover);
  color: var(--text);
  border-color: var(--border-2);
}
.to-top.is-visible {
  opacity: 1;
  visibility: visible;
  transform: translateY(0);
}

/* ---------------- Responsive ---------------- */

@media (max-width: 1024px) {
  .layout { grid-template-columns: var(--sidebar-w) minmax(0, 1fr); }
  .toc { display: none; }
  .doc { padding-right: 8px; }
}

@media (max-width: 860px) {
  .menu-btn { display: grid; }
  .layout {
    grid-template-columns: minmax(0, 1fr);
  }
  .sidebar {
    position: fixed;
    top: var(--header-h);
    left: 0;
    width: 280px;
    max-width: 84vw;
    height: calc(100vh - var(--header-h));
    padding: 20px 20px 48px;
    background: var(--bg-elev);
    border-right: 1px solid var(--border);
    box-shadow: var(--shadow-pop);
    transform: translateX(-102%);
    transition: transform .24s cubic-bezier(.32, .72, 0, 1);
    z-index: 60;
  }
  body.nav-open .sidebar { transform: translateX(0); }
  .scrim {
    display: block;
    position: fixed;
    inset: var(--header-h) 0 0 0;
    background: rgba(0, 0, 0, .35);
    opacity: 0;
    pointer-events: none;
    transition: opacity .24s;
    z-index: 55;
  }
  body.nav-open .scrim { opacity: 1; pointer-events: auto; }
  .doc { padding: 24px 20px 72px; }
  .brand-title { max-width: 44vw; }
  #search { width: 150px; }
  .detector-kbd { display: none; }
  .search-wrap .search-kbd { display: none; }
  .search-wrap:not(:focus-within):not(.has-value) #search { padding-right: 34px; }
}

@media (max-width: 520px) {
  .search-toggle { display: grid; }
  .search-wrap {
    display: none;
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    height: var(--header-h);
    padding: 0 14px;
    gap: 4px;
    background: var(--bg-elev);
    border-bottom: 1px solid var(--border);
    z-index: 90;
  }
  body.search-open .search-wrap { display: flex; }
  body.search-open .search-toggle { display: none; }
  .search-wrap .search-close { display: grid; }
  .search-wrap .search-icon {
    position: static;
    flex: none;
    width: 18px;
    height: 18px;
  }
  .search-wrap #search {
    flex: 1 1 auto;
    width: auto;
    max-width: none;
    padding-left: 10px;
    padding-right: 34px;
  }
  .search-kbd { display: none; }
  .search-wrap .search-clear { right: 20px; }

  .doc-hero h1 { font-size: 28px; }
  .cat-title { font-size: 22px; }
}

/* ---------------- Shortcut detector ---------------- */

body.detector-open { overflow: hidden; }

.detector {
  position: fixed;
  inset: 0;
  z-index: 200;
  display: grid;
  place-items: center;
  padding: 20px;
}
.detector[hidden] { display: none; }

.detector-scrim {
  position: absolute;
  inset: 0;
  background: rgba(0, 0, 0, .42);
  -webkit-backdrop-filter: blur(2px);
  backdrop-filter: blur(2px);
}

.detector-card {
  position: relative;
  width: min(560px, 100%);
  max-height: 88vh;
  overflow-y: auto;
  padding: 26px 26px 22px;
  background: var(--bg-elev);
  border: 1px solid var(--border);
  border-radius: 16px;
  box-shadow: var(--shadow-pop);
  animation: det-in .18s cubic-bezier(.32, .72, 0, 1);
}

@keyframes det-in {
  from { opacity: 0; transform: translateY(8px) scale(.98); }
  to { opacity: 1; transform: none; }
}

.detector-close {
  position: absolute;
  top: 14px;
  right: 14px;
  width: 30px;
  height: 30px;
  display: grid;
  place-items: center;
  font-size: 20px;
  line-height: 1;
  color: var(--text-2);
  background: transparent;
  border: none;
  border-radius: 8px;
  cursor: pointer;
  transition: background .15s, color .15s;
}
.detector-close:hover { background: var(--bg-hover); color: var(--text); }

.detector-title { margin: 0 0 4px; font-size: 20px; font-weight: 700; letter-spacing: -.01em; }
.detector-sub { margin: 0 0 18px; font-size: 14px; color: var(--text-2); }

.detector-capture {
  padding: 22px 16px;
  text-align: center;
  background: var(--bg-subtle);
  border: 2px dashed var(--border-2);
  border-radius: 12px;
  outline: none;
  transition: border-color .15s, background .15s, transform .06s;
}
.detector-capture.active {
  border-color: var(--accent);
  border-style: solid;
  background: var(--accent-soft);
  transform: scale(1.006);
}

.detector-keys {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: center;
  gap: 6px;
  min-height: 34px;
}
.detector-keys .hint { color: var(--text-3); font-size: 14px; }
.detector-keys kbd { font-size: 14px; padding: 5px 11px; min-width: 30px; }
.detector-keys .plus { font-size: 13px; }

.detector-status {
  margin: 16px 2px 0;
  font-size: 14px;
  color: var(--text-2);
  min-height: 20px;
}
.detector-status.warn { color: #b26a00; }
@media (prefers-color-scheme: dark) {
  .detector-status.warn { color: #e0a336; }
}

.detector-results {
  display: flex;
  flex-direction: column;
  gap: 8px;
  margin-top: 8px;
  max-height: 42vh;
  overflow-y: auto;
}

.detector-hit {
  display: flex;
  flex-direction: column;
  gap: 2px;
  width: 100%;
  padding: 9px 12px;
  font-family: inherit;
  text-align: left;
  background: var(--bg-subtle);
  border: 1px solid var(--border);
  border-radius: 9px;
  cursor: pointer;
  transition: background .13s, border-color .13s;
}
.detector-hit:hover { background: var(--bg-hover); border-color: var(--border-2); }
.detector-hit .dh-app { font-size: 12px; color: var(--text-3); }
.detector-hit .dh-action { font-size: 14px; color: var(--text); }

.detector-note {
  margin: 18px 0 0;
  padding-top: 14px;
  border-top: 1px solid var(--border);
  font-size: 12px;
  line-height: 1.6;
  color: var(--text-3);
}

/* ---------------- Reserved shortcuts panel ---------------- */

.detector-reserved { margin-top: 12px; }

.reserved-toggle {
  width: 100%;
  padding: 10px 12px;
  font-family: inherit;
  font-size: 13.5px;
  font-weight: 600;
  color: var(--text);
  text-align: left;
  background: var(--bg-subtle);
  border: 1px solid var(--border);
  border-radius: 9px;
  cursor: pointer;
  transition: background .13s, border-color .13s;
}
.reserved-toggle:hover { background: var(--bg-hover); border-color: var(--border-2); }
.reserved-toggle::before {
  content: "▸";
  display: inline-block;
  margin-right: 8px;
  color: var(--text-3);
  transition: transform .15s;
}
.reserved-toggle.open::before { transform: rotate(90deg); }

.reserved-body { padding: 14px 2px 2px; }
.reserved-group + .reserved-group { margin-top: 16px; }
.reserved-label {
  margin-bottom: 8px;
  font-size: 12px;
  font-weight: 600;
  color: var(--text-2);
}
.reserved-list {
  display: flex;
  flex-direction: column;
  gap: 2px;
  max-height: 200px;
  overflow-y: auto;
}
.reserved-row {
  display: flex;
  align-items: baseline;
  gap: 10px;
  padding: 4px 0;
  border-bottom: 1px solid var(--border);
}
.reserved-row:last-child { border-bottom: none; }
.reserved-row .kbd-set { flex: 0 0 auto; min-width: 108px; }
.reserved-row .kb-action { font-size: 13px; color: var(--text-2); }

.reserved-lock {
  margin-bottom: 14px;
}
.lock-btn { width: 100%; padding: 10px 16px; font-size: 13.5px; }
.lock-btn:disabled { opacity: .55; cursor: not-allowed; }
.lock-hint { margin: 8px 0 0; font-size: 12px; line-height: 1.5; color: var(--text-3); }

/* ---------------- Detected-OS badge ---------------- */

.os-badge {
  font-size: 11.5px;
  font-weight: 700;
  color: #fff;
  background: var(--accent);
  padding: 2px 9px;
  border-radius: 999px;
}